Efficiency Meets Precision:


The SVM Series for Kinematic Viscosity Testing Viscosity is a critical parameter in the analysis of petrochemical samples, requiring precision and compliance with rigorous standards. While ASTM D445 capillary methods have served as a traditional solution, advancements in measurement technology have introduced ASTM D7042 as a sophisticated alternative, effectively overcoming limitations inherent in gravity-based measurements.


ASTM D445, the traditional method using glass capillaries and gravity, has long been a go-to approach, but it is labor-intensive, especially the original, manual procedure. Maintaining temperature stability with liquid baths, monitoring with dual thermometers, and the need for a lengthy temperature equilibration process are inherent to D445. While automated versions exist, they remain rooted in the manual method, requiring maintenance to ensure consistency.


Anton Paar’s SVM series viscometers, designed to provide measurements in line with ASTM D7042, combine dynamic viscosity measurements with density measurements according to D4052, and calculation of kinematic viscosity in a single, streamlined step. This integrated approach eliminates the need for multiple tests, enhancing productivity and significantly reducing lab space requirements as well as investment costs. Additionally, precise Peltier temperature control allows measurements from -60 °C to +135 °C with rapid adjustments (up to 20 °C/ min) without the need for external thermostats or liquid baths.


Engineered for efficiency, the SVM minimizes both sample and solvent use, significantly lowering waste disposal and solvent costs, and supporting sustainable practices by reducing solvent consumption by over 50 %. For D7042-compliant measurements, the SVM requires only 5 mL of sample, with the flexibility to further reduce sample volume to 1.5 mL in routine, non-compliance measurements. To ensure consistency, routine calibrations are performed monthly. This simple verification process ensures dependable results and adds traceability in reporting. Additionally, if reporting results according to D445 is required, ASTM-published bias correction factors are integrated into the SVM’s software, enabling D7042 measurements with calculated D445 results.


The SVM offers a reliable solution for viscosity measurement. Its measurement principle is internationally recognized, not only reflected in the standardized test method but also in the standard specifications of numerous petroleum products that reference the method. This makes the SVM a versatile, trusted instrument across a wide range of industry applications.


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From -45°C to +300°C: Unlocking Accurate Dynamic Viscosity Measurements


Anton Paar’s ViscoQC rotational viscometers can be equipped with compact, coolant-free temperature devices that measure across a combined range from -45 °C to +300 °C, making them ideal for samples like lubricants, bitumen, waxes and resins.


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Heat and chill: Meet PTD 175 & ETD 300


PTD 175 uses Peltier technology to control sample temperatures from -45 to +175 °C without the need for an external circulator bath, as it is air-cooled. It is the ideal choice if frequent or fast temperature changes are required, as the device can actively heat and cool at impressive rates (max. heating/cooling 20 °C/min and 28 °C/min respectively). The setup is fully controlled via the viscometer’s display, accommodating all typical measuring geometries (DIN, small sample adapter, ultra-low viscosity, and double gap) with sample volumes from 2 mL to 20 mL, and optional disposable cups for hard-to-clean samples. The setup is compliant with widely used standards like ASTM D2983, D5133, DIN 51398 and many more.


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On the other hand, the ETD 300 heating chamber is designed for high-temperature measurements, offering a stable environment for samples like bitumen, waxes, hot melts, and polymers within a temperature range of 25 °C to 300 °C. Like PTD 175, it is fully controlled through the viscometer’s display and supports the typical small sample geometries. The setup is compliant with widely used standards like ASTM D4402, D1986, D3236, D6267, DIN 13302 and AASHTO T316.


Unique features for instrument longevity and measurement accuracy


Viscometer failures are often caused by improper spindle attachment, which can damage the mechanics of the device. ViscoQC mitigates this risk with its magnetic spindle coupling, simplifying attachment and preventing damage from incorrect installation.


The innovative TruMode™ feature allows ViscoQC to automatically select the ideal measuring speed for individual samples, ensuring optimal torque levels (typically between 80 % and 90 %) for the highest accuracy in every measurement. Speaking of accuracy, ViscoQC is designed so that calibrations and adjustments of the measuring setup can easily be done by the user via the help of a guide-through wizard on the device. This ensures that the setup always delivers reliable measurements.


T-ReadyTM : For the highest sample temperature precision


Accurate temperature control is essential for viscosity measurements; a deviation of 1 °C can make a difference of up to 10 % in viscosity values. Samples with high specific heat capacity and low thermal conductivity (e.g. bitumen, waxes etc.) therefore require long temperature equilibration times. If the measurement is prematurely started without the sample having been fully equilibrated, it will result in incorrect viscosity readings. To address this, ViscoQC includes the unique T-Ready™ function, which ensures that the sample itself has reached the correct temperature before measurements begin. This feature saves time by preventing unnecessary waiting or premature measurements, ensuring accurate and reliable viscosity values.


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Anton Paar participated in the ASTM Proficiency Testing Program 2023 to test the jet fuel sample JF 2303 with TAG 500:


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Anton Paar’s ABA 500/300 and TAG 500/300: Jet Fuel Testing


Anton Paar’s ABA 500/300 and TAG 500/300 are the perfect solution for testing jet fuels according to ASTM D56 and ISO 13736. The flash point is an important parameter within the jet fuel product specifications and determining it supports safe use, storage, and transport. Having a reliable and precise flash point tester is a must. ABA 500/300 and TAG 500/300 are not only reliable and precise but provide a lot of additional benefits. They are intuitive to use, innovative, cost-saving, and provide comfortable data handling via AP Connect or LIMS.


The patented ceramic-coated electric igniter system of ABA 500/300 and TAG 500/300 have a 10-times longer lifetime than other igniters on the market and yet are less expensive. This saves igniter costs and maintenance time. Furthermore, ABA 500 and TAG 500 can be operated with and without an external chiller, depending on the flash point temperature – an external chiller is required only for flash point temperatures below 10 °C. The two-in-one air- and liquid-supported Peltier System with ABA 500 and TAG 500 is very flexible.


Anton Paar participates in interlaboratory testing programs on a regular basis. Such testing programs are valuable tools for laboratories and instrument manufacturers worldwide to conduct specified tests on the same material in accordance with the same test method and to compare the results. Anton Paar regularly participates in the ASTM and FAM Proficiency Testing program to verify the precision of Anton Paar’s automatic TAG and ABA closed cup flash point testers. Results from testing jet fuels according to ASTM D56 and ISO 13736 are reported below and show the excellent precision of the ABA and TAG flash point testers.


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Anton Paar participated in the FAM ILS Testing Program 2023 to test the jet fuel samples 885 and 886 with ABA 500:


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